User manual

Problem Possible Causes and Solutions
The display shows
any of the following:
err 1 , err 2 ,
err 3 , err 4 ,
err 5, Err 6, or
Err 7
Controller problem. The error messages signify the following
problems with the controller.
Err 1 - a RAM error
Err 2 - a NVRAM error
Err 3 - a Structure error
Err 4 - an ADC setup error
Err 5 - an ADC ready error
Err 6 – a defective control sensor
Err 7 – a heater error
Initialize the system by performing the Factory Reset Sequence
describe above.
Temperature cannot
be set above a cer
-
tain point
Incorrect High Limit parameter. The High Limit parameter may
be set below 150°C. Check this value as described in Section
7.11, Operating Parameters.
Ice buildup At temperatures below 5°C, use the target cover and/or a gas
purge. When taking measurements using the target cover, place
the target cover in place and set the set-point to the desired tem
-
perature, remove the target cover, take a sample, and replace the
cover. When ice forms on the target, change the set-point higher
than 5°C to melt the excess ice. When the ice melts pat the ex-
cess water off with a clean dry cloth. Do not wipe the front
plate. If a clean dry cloth is not available, change the set-point to
100°C or higher, to evaporate the excess water.
Use a dry gas purge. When using a dry gas purge, the instru-
ment will not reach minimum temperature. An example of a dry
gas purge is dry nitrogen connected through a 1/8” inner diame-
tertubetothepurgefittinglocated at the front bottom of the tar-
get. The nitrogen gas is controlled to fill the chamber in front of
the target at a rate that will not allow airflow to affect the target.
Note: If the gas contains any moisture, ice will form on the
target.
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User’s Guide
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